campbell



S. P. CAMPBELL.

Button for Carriage Curtains.

No. 73,778. I Patented Jany 28, 1868.

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' STILLMAN P. CAMPBELL, OF QUINCY, MASSACHUSETTS.

Letters Patent No. 73,778, dated January 28, 1868.

IMPROVEMENT IN BUTTONS FOR CARRIAGE-CURTAINS.

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TO ALL WHOM IT MAY CONCERN:-

Be it known that I, S. P. CAMPBELL, of Quincy, in the county of ll'o'rt'olk, and State of Massachusetts, have invented a new and useful Improvement in Buttons-for GarrisgoCurtains, &c.; end I do hereby declare the following to be a full, dear, and exact description of the same, reference being bad to the accompanying drawings, inwhich- Figure 1 shows the different parts of my invention, both as separated and together when in use.

Figure 2 shows the button attached to the curtains of a carriage. I

My invention consists in a. metallic spring-catch button for fastening the curtains of a. carriage and other similar purposes. t t It consists mainly, as will be seen by reference to the accompanying drawings, of un oblong plate, A, of metal, with a circular holein the centre, through which passes the stem of the buttonB, and in which it is free to turn. The stem of the button is.cylindrical where itpasses through the plate, but immediately within it is square, and by the action of the spring S bearing upon this squure'surfuoe, it is retained in position as placed, to hold the cover, or so that the eye F of the cover may be readily slipped over the button. .The spring is held in its place by the plate C, placed on the inner end of the ste n D, and on which'it is free to turn. Beyond this plate, 0 is the washer a, firmly riveted to theend of the stem, thus securing all'the parts in place. From the outside of the plate A, through the projections and the plate, 0, are holes drilled for screws, by which the whole is attached to the carriage. v

It is only required that the button should be retained in one of two positions, and it is not necessary that it should be rigidly secured in either of'these, but only retained with so much power as may be required to withstand the displacing effect of thejar of a carriage iumotion. Thepressureof'the spring S, or its equivalent, upon the flattened surface of the stem, is i'onnd to he amply suflicient for this purpose.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, isp The button B, provided with a stem, part of which is rectangular, in combination with a pressure-spring, S, the whole constructed and operating substantially as and for the purpose set forth.

' STILLMAN P. CAMPBELL.

Witnesses:

"Gnome Wsnswonm,

LOUIS Onro. 

